Hantavirus is a rare and potentially fatal virus carried by rodents. It is often present in rodent droppings, urine and saliva. Humans can contract the virus when they breathe in dust containing it.

"A month ago she was going to go to Costa Rica with a bunch of girlfriends, and enjoy a fun week. Now she can't even go do anything on her own," Lane's mother, Julie Barron, said at the time.

Barron said she had no idea how her daughter could have contracted it. Doctors initially believed she had the flu. Symptoms of hantavirus are similar to flu and include fever, severe muscle aches and fatigue.

“Our family doesn’t really go to the doctor a lot. But in this particular case, her husband just had the gut instinct that they didn’t need to wait around, and he took her into the ER,” Barron told People.

The Farmington Daily Times reports Lane was hooked up to a ECMO machine, which pumped oxygen into her blood. About a month after her diagnosis, CDC officials conducted a hantavirus test that came back negative. The virus was no longer in her system, but the damage done to her organs was too much for her to overcome.

"Kiley Rianna Terrell Lane left this world and joined her Heavenly Father peacefully on April 18th surrounded by her loving husband, mother, sister, and family," A YouCaring page reads. "Kiley courageously fought a battle to survive a deadly virus for weeks at the University of New Mexico Hospital in Albuquerque. Kiley and the family have been comforted by your generous outpouring of love. This has been a heartbreaking time, but your thoughts and prayers have been felt throughout and sustained them."

Lane leaves behind a 2-year-old daughter.

How she contracted the virus remains a mystery. Tests of possible mouse and rat droppings around her residence came back negative.

Her family hopes her story will lead to more research and funding being done on hantavirus.

"We would like to see some things change so no one has to go through this," Barron said.

As of January 2017, a total of 728 cases of hantavirus had been reported in the United States across 36 states. The case fatality rate in the United States is 36 percent. More information can be found here.